链接器错误断言失败:(atom-> fixupCount()== 1)

使用Xcode 4.0.2 ,我有一个目标,编译,链接,并在模拟器中正常运行。 但是,当我编译和链接一个iOS设备,我得到以下(完整)链接器错误:

Ld /Users/mike/Library/Developer/Xcode/DerivedData/FOObar-ezjrxybxyybadxguvscgaqtaelju/Build/Products/Debug-iphoneos/FrameworkHarness.app/FrameworkHarness normal armv7 cd /Users/mike/src/FOO/FOObar setenv IPHONEOS_DEPLOYMENT_TARGET 4.2 setenv PATH "/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin:/Developer/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin" /Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/llvm-gcc-4.2 -arch armv7 -isysroot /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.3.sdk -L/Users/mike/Library/Developer/Xcode/DerivedData/FOObar-ezjrxybxyybadxguvscgaqtaelju/Build/Products/Debug-iphoneos -F/Users/mike/Library/Developer/Xcode/DerivedData/FOObar-ezjrxybxyybadxguvscgaqtaelju/Build/Products/Debug-iphoneos -filelist /Users/mike/Library/Developer/Xcode/DerivedData/FOObar-ezjrxybxyybadxguvscgaqtaelju/Build/Intermediates/FOObar.build/Debug-iphoneos/FrameworkHarness.build/Objects-normal/armv7/FrameworkHarness.LinkFileList -dead_strip -miphoneos-version-min=4.2 -framework FOObar -framework UIKit -framework Foundation -framework CoreGraphics -o /Users/mike/Library/Developer/Xcode/DerivedData/FOObar-ezjrxybxyybadxguvscgaqtaelju/Build/Products/Debug-iphoneos/FrameworkHarness.app/FrameworkHarness Assertion failed: (atom->fixupCount() == 1), function targetCString, file /SourceCache/ld64/ld64-123.3/src/ld/parsers/macho_relocatable_file.cpp, line 4831. 0 0x13886 __assert_rtn + 86 1 0x2dfd8 mach_o::relocatable::PointerToCStringSection<arm>::targetCString(mach_o::relocatable::Atom<arm> const*, ld::IndirectBindingTable const&) const + 280 2 0x2b27c mach_o::relocatable::PointerToCStringSection<arm>::contentHash(mach_o::relocatable::Atom<arm> const*, ld::IndirectBindingTable const&) const + 76 3 0x2c57f mach_o::relocatable::Atom<arm>::contentHash(ld::IndirectBindingTable const&) const + 47 4 0xae870 ld::tool::SymbolTable::findSlotForReferences(ld::Atom const*, ld::Atom const**) + 704 5 0xb21dc ld::tool::Resolver::convertReferencesToIndirect(ld::Atom const&) + 268 6 0xb33f2 ld::tool::Resolver::doAtom(ld::Atom const&) + 642 7 0x21f7c mach_o::relocatable::File<arm>::forEachAtom(ld::File::AtomHandler&) const + 60 8 0xaa29e ld::tool::InputFiles::forEachInitialAtom(ld::File::AtomHandler&) const + 46 9 0xb5924 ld::tool::Resolver::resolve() + 84 10 0x14ff7 main + 871 collect2: ld returned 1 exit status 

有人可以解释一下吗?

谢谢Mike

用-v调用

 /Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/llvm-gcc-4.2 -v -arch armv7 -isysroot /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.3.sdk -L/Users/mike/Library/Developer/Xcode/DerivedData/FOObar-ezjrxybxyybadxguvscgaqtaelju/Build/Products/Debug-iphoneos -F/Users/mike/Library/Developer/Xcode/DerivedData/FOObar-ezjrxybxyybadxguvscgaqtaelju/Build/Products/Debug-iphoneos -filelist /Users/mike/Library/Developer/Xcode/DerivedData/FOObar-ezjrxybxyybadxguvscgaqtaelju/Build/Intermediates/FOObar.build/Debug-iphoneos/FrameworkHarness.build/Objects-normal/armv7/FrameworkHarness.LinkFileList -dead_strip -miphoneos-version-min=4.2 -framework FOObar -framework UIKit -framework Foundation -framework CoreGraphics -o /Users/mike/Library/Developer/Xcode/DerivedData/FOObar-ezjrxybxyybadxguvscgaqtaelju/Build/Products/Debug-iphoneos/FrameworkHarness.app/FrameworkHarness Using built-in specs. Target: arm-apple-darwin10 Configured with: /var/tmp/llvmgcc42_Embedded/llvmgcc42_Embedded-2373.6~5/src/configure --enable-checking --enable-werror --prefix=/Developer/usr/llvm-gcc-4.2 --mandir=/Developer/usr/llvm-gcc-4.2/share/man --enable-languages=c,objc,c++,obj-c++ --program-prefix=llvm- --program-transform-name=/^[cg][^.-]*$/s/$/-4.2/ --with-slibdir=/usr/lib --build=i686-apple-darwin10 --enable-llvm=/var/tmp/llvmgcc42_Embedded/llvmgcc42_Embedded-2373.6~5/dst-llvmCore/Developer/usr/local --enable-werror-always --program-prefix=arm-apple-darwin10- --host=i686-apple-darwin10 --target=arm-apple-darwin10 --with-gxx-include-dir=/usr/include/c++/4.2.1 --with-build-sysroot=/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.3.Internal.sdk Thread model: posix gcc version 4.2.1 (Based on Apple Inc. build 5658) (LLVM build 2373.6) /Developer/Platforms/iPhoneOS.platform/Developer/usr/llvm-gcc-4.2/bin/../libexec/gcc/arm-apple-darwin10/4.2.1/collect2 -dynamic -arch armv7 -dead_strip -iphoneos_version_min 4.2 -syslibroot /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.3.sdk -weak_reference_mismatches non-weak -o /Users/mike/Library/Developer/Xcode/DerivedData/FOObar-ezjrxybxyybadxguvscgaqtaelju/Build/Products/Debug-iphoneos/FrameworkHarness.app/FrameworkHarness -lcrt1.3.1.o -L/Users/mike/Library/Developer/Xcode/DerivedData/FOObar-ezjrxybxyybadxguvscgaqtaelju/Build/Products/Debug-iphoneos -L/Developer/Platforms/iPhoneOS.platform/Developer/usr/llvm-gcc-4.2/bin/../lib/gcc/arm-apple-darwin10/4.2.1/v7 -L/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.3.sdk/usr/lib -L/Developer/Platforms/iPhoneOS.platform/Developer/usr/llvm-gcc-4.2/bin/../lib/gcc/arm-apple-darwin10/4.2.1 -L/Developer/Platforms/iPhoneOS.platform/Developer/usr/llvm-gcc-4.2/bin/../lib/gcc -L/Developer/Platforms/iPhoneOS.platform/Developer/usr/llvm-gcc-4.2/bin/../lib/gcc/arm-apple-darwin10/4.2.1/../../.. -filelist /Users/mike/Library/Developer/Xcode/DerivedData/FOObar-ezjrxybxyybadxguvscgaqtaelju/Build/Intermediates/FOObar.build/Debug-iphoneos/FrameworkHarness.build/Objects-normal/armv7/FrameworkHarness.LinkFileList -framework FOObar -framework UIKit -framework Foundation -framework CoreGraphics -lgcc_s.1 -lgcc -lSystem -F/Users/mike/Library/Developer/Xcode/DerivedData/FOObar-ezjrxybxyybadxguvscgaqtaelju/Build/Products/Debug-iphoneos Assertion failed: (atom->fixupCount() == 1), function targetCString, file /SourceCache/ld64/ld64-123.3/src/ld/parsers/macho_relocatable_file.cpp, line 4831. 0 0x13886 __assert_rtn + 86 1 0x2dfd8 mach_o::relocatable::PointerToCStringSection<arm>::targetCString(mach_o::relocatable::Atom<arm> const*, ld::IndirectBindingTable const&) const + 280 2 0x2b27c mach_o::relocatable::PointerToCStringSection<arm>::contentHash(mach_o::relocatable::Atom<arm> const*, ld::IndirectBindingTable const&) const + 76 3 0x2c57f mach_o::relocatable::Atom<arm>::contentHash(ld::IndirectBindingTable const&) const + 47 4 0xae870 ld::tool::SymbolTable::findSlotForReferences(ld::Atom const*, ld::Atom const**) + 704 5 0xb21dc ld::tool::Resolver::convertReferencesToIndirect(ld::Atom const&) + 268 6 0xb33f2 ld::tool::Resolver::doAtom(ld::Atom const&) + 642 7 0x21f7c mach_o::relocatable::File<arm>::forEachAtom(ld::File::AtomHandler&) const + 60 8 0xaa29e ld::tool::InputFiles::forEachInitialAtom(ld::File::AtomHandler&) const + 46 9 0xb5924 ld::tool::Resolver::resolve() + 84 10 0x14ff7 main + 871 collect2: ld returned 1 exit status 

额外细节

当我将一个名为FrameworkHarness的应用程序的编译后的.m文件与我创build的名为FOOBar的框架链接起来时,就发生了这种情况。 框架配方来自: http : //db-in.com/blog/2011/07/universal-framework-iphone-ios-2-0/

当我:没有链接错误

  • 直接用模拟器的FrameworkHarness的.m文件从FOObar框架编译.m文件。
  • 直接使用FrameworkHarness的iOS设备的.m文件从FOObar框架编译.m文件。
  • 将FOObar框架与为模拟器编译的FrameworkHarness的.m文件相链接。

我有一个链接错误:

  • 将FOObar框架与为iOS设备编译的FrameworkHarness的.m文件相链接。

我厌倦了通过从框架中删除5个领域之一来隔离该框架的问题。 每次我将修改后的框架与iOS设备的已编译的FrameworkHarness的.m文件链接在一起时,都没有链接错误。

接下来,我完整地离开了框架,但是从应用程序中移除了框架中5个区域之一的调用。 我能够隔离可能导致iOS设备链接器问题的框架区域。 我做了同样的过程,删除框架中的代码,并能够确定特定的代码,当链接造成的错误。 我在框架的这个区域移动了代码,链接错误消失了。 然而,我移动的代码是肤浅的,我所做的只是将代码从一个函数移动到一个新函数,并从原始函数中调用该函数。 被移动的代码是:

 // Prompt are you sure? NSString *message = [[NSString alloc] initWithFormat:@"Are you sure you want to remove the vlaue \"%@\" from the list?", [array objectAtIndex:[pickerView selectedRowInComponent:0]]]; UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"Confirmation needed" message:message delegate:self cancelButtonTitle:@"Keep" otherButtonTitles:@"Remove", nil]; [message release]; [alertView show]; [alertView release]; 

使用nm来比较framworks符号

我在iOS设备上运行nm并模拟了框架。 版本之间有一些区别,但没有任何尖叫

nm -j -a

-j只显示符号名称(没有值或types)。 -a显示所有符号表条目,包括插入供debugging器使用的符号表条目。

 diff nm.ios nm.sim 125a126,134 > EH_Frame1 > EH_Frame1 > EH_Frame1 > EH_Frame1 > EH_Frame1 > EH_Frame1 > EH_Frame1 > EH_Frame1 > EH_Frame1 313d321 < ___divsi3 324a333 > _objc_msgSend_fpret 327a337,431 > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh > func.eh 
  • EH_Frame1和func.eh是“S”(符号除上述以外的部分)
  • ___divsi3和_objc_msgSend_fpret是“U”(未定义)

nm -j -g

-j只显示符号名称(没有值或types)。 -g仅显示全局(外部)符号。

 diff nm.ios nm.sim 83d82 < ___divsi3 89a89 > _objc_msgSend_fpret 

nm -j -u

-j只显示符号名称(没有值或types)。 -u只显示未定义的符号。

 diff nm.ios nm.sim 37d36 < ___divsi3 43a43 > _objc_msgSend_fpret 

可能的后续步骤

有没有一个链接标志告诉它吐出它正在工作,所以我可以看到它是在断言之前做什么?

升级到Xcode的最新版本(目前4.1,不包括testing版)。 这应该可以解决你的问题。

这是一个链接器或编译器错误。 你会想要提供一个雷达来源和build立信息。 至less我们需要所有的对象文件和链接。